Analytical optimal currents for multiphase PMSMs under fault conditions and saturation

Author

Ngac Ky Nguyen ; Flieller, Damien ; Kestelyn, Xavier ; dos Santos Moraes, Tiago Jose ; Semail, Eric

Author_Institution

Lab. of Electr. Eng. & Power Electron., Art et Metiers ParisTech, Lille, France

fYear

2014

Firstpage

3197

Lastpage

3203

Abstract

An original analytical expression is presented in this paper to obtain optimal currents minimizing the copper losses of a multi-phase Permanent Magnet Synchronous Motor (PMSM) under fault conditions. Based on the existing solutions [i]^opt1 (without zero sequence of current constraint) and [i]^opt2 (with zero sequence constraint), this new expression of currents [i]^opt3 is obtained by means of a geometrical representation and can be applied to open-circuit, defect of current regulation, current saturation and machine phase short-circuit fault. Simulation results are presented to validate the proposed approach.

Keywords

fault diagnosis; permanent magnet motors; short-circuit currents; synchronous motors; analytical expression; analytical optimal currents; current constraint; current regulation; current saturation; fault conditions; fault saturation; geometrical representation; machine phase short-circuit fault; multiphase PMSM; open-circuit; permanent magnet synchronous motor; zero sequence constraint; Circuit faults; Electromagnetics; Harmonic analysis; Inverters; Simulation; Torque; Vectors; Multiphase PMSM; fault tolerance; open-circuit; optimal currents; saturation; short-circuit; torque pulsation;

fLanguage

English

Publisher

ieee

Conference_Titel

Industrial Electronics Society, IECON 2014 - 40th Annual Conference of the IEEE

Type

conf

DOI

10.1109/IECON.2014.7048968

Filename

7048968